/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.netbeans.modules.javaee.specs.support.api;

import java.util.Set;
import org.netbeans.api.annotations.common.NonNull;
import org.netbeans.modules.j2ee.deployment.devmodules.api.J2eePlatform;
import org.netbeans.modules.javaee.specs.support.bridge.BridgingJpaSupportImpl;
import org.netbeans.modules.javaee.specs.support.spi.JpaSupportImplementation;
import org.openide.util.Parameters;

/**
 *
 * @author Petr Hejl
 */
public final class JpaSupport {
    
    private final JpaSupportImplementation impl;

    private JpaSupport(JpaSupportImplementation impl) {
        this.impl = impl;
    }
    
    @NonNull
    public static JpaSupport getInstance(@NonNull J2eePlatform platform) {
        Parameters.notNull("platform", platform);
        JpaSupportImplementation impl = platform.getLookup().lookup(JpaSupportImplementation.class);
        if (impl != null) {
            return new JpaSupport(impl);
        }
        return new JpaSupport(new BridgingJpaSupportImpl(platform));
    }
    
    public Set<JpaProvider> getProviders() {
        return impl.getProviders();
    }

    public JpaProvider getDefaultProvider() {
        return impl.getDefaultProvider();
    }

}
